:root{--bg: #f0f2f5;--panel: #fff;--text: #111b21;--muted: #667781;--line: #e9edef;--primary: #008069;--primary-dark: #006b58;--primary-ink: #fff;--accent: #25d366;--err: #c0392b;--chat-bg: #efeae2;--mine: #d9fdd3;--theirs: #fff;--tick: #53bdeb;--head: #f0f2f5;--radius: 8px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font:15px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%}h1{font-size:20px;margin:0}h2{font-size:18px;margin:0 0 8px}a{color:var(--primary)}code{background:#eef0f2;padding:1px 5px;border-radius:4px;font-size:12px}button{font:inherit}.muted{color:var(--muted)}.small{font-size:12px}.grow{flex:1;min-width:0}.err{color:var(--err)}.ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.row{display:flex;align-items:center;gap:8px}.row.between{justify-content:space-between}.row.gap{gap:6px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}:focus-visible{outline:2px solid var(--primary);outline-offset:2px}input,textarea,select{font:inherit;color:inherit;border:1px solid var(--line);border-radius:8px;padding:9px 11px;background:#fff;width:100%}input:focus,textarea:focus{outline:2px solid #9fd8cb;border-color:var(--primary)}.btn{border:1px solid var(--line);background:#fff;color:var(--text);padding:8px 16px;border-radius:8px;cursor:pointer;text-decoration:none;display:inline-block;white-space:nowrap}.btn:hover:not(:disabled){background:#f5f6f6}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}.btn.primary:hover:not(:disabled){background:var(--primary-dark)}.btn.small{padding:4px 10px;font-size:13px}.btn.block{width:100%;text-align:center}.btn.light{background:#ffffff2e;color:#fff;border-color:#fff6}.btn.light:hover{background:#ffffff4d!important}.link{background:none;border:0;color:var(--primary);cursor:pointer;padding:0;text-decoration:underline}.link:disabled{color:var(--muted);cursor:default;text-decoration:none}.icon-btn{background:none;border:0;cursor:pointer;padding:6px;border-radius:50%;font-size:20px;line-height:1;display:inline-flex;color:var(--muted)}.icon-btn:hover:not(:disabled){background:#0000000f}.icon-btn:disabled{opacity:.4}.field{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}.field>span{font-size:12px;color:var(--muted);font-weight:600}.alert{padding:8px 12px;border-radius:8px;margin:8px 0;border:1px solid var(--line);font-size:14px}.alert.error{background:#fdecea;border-color:#f2b8b0;color:#8a1f12}.alert.ok{background:#e7f6ee;border-color:#b4dfc6;color:#176b44}.state{padding:28px 16px;text-align:center;color:var(--muted)}.spinner{display:inline-block;width:14px;height:14px;border:2px solid #cfd8dc;border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;vertical-align:-2px}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.spinner{animation-duration:3s}}.avatar{border-radius:50%;background:#dfe5e7;color:#54656f;display:inline-flex;align-items:center;justify-content:center;font-weight:600;flex:none;object-fit:cover}.login-wrap{min-height:100%;display:flex;align-items:center;justify-content:center;padding:16px;background:linear-gradient(180deg,var(--primary) 0 220px,var(--bg) 220px)}.login{width:100%;max-width:420px;background:var(--panel);border-radius:12px;padding:24px;box-shadow:0 2px 16px #0b141a1f}.login h1{font-size:21px;margin:12px 0}.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--primary);font-size:18px}.login-links{margin-top:12px}.app{height:100%;display:flex;max-width:1600px;margin:0 auto;background:var(--panel);box-shadow:0 0 0 1px var(--line);position:relative;overflow:hidden}.list-pane{width:400px;flex:none;display:flex;flex-direction:column;border-right:1px solid var(--line);background:var(--panel);min-height:0}.detail-pane{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--chat-bg);position:relative}.list-head{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--primary);color:#fff;min-height:56px}.list-head h1{font-size:19px}.search{padding:8px 12px;border-bottom:1px solid var(--line)}.search input{border-radius:20px;background:var(--bg);border-color:transparent;padding:7px 14px}.list-scroll{flex:1;overflow-y:auto;min-height:0}.offline{background:#fff3cd;color:#664d03;padding:6px 12px;font-size:13px;text-align:center}.chat-list{list-style:none;margin:0;padding:0}.chat-item{display:flex;align-items:center;gap:12px;padding:10px 14px;text-decoration:none;color:inherit;border-bottom:1px solid var(--line)}.chat-item:hover{background:#f5f6f6}.chat-item.active{background:#e9edef}.ci-body{flex:1;min-width:0}.ci-top,.ci-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px}.ci-name{font-weight:600}.ci-time{font-size:12px;color:var(--muted);flex:none}.ci-time.unread{color:var(--accent);font-weight:600}.ci-preview{color:var(--muted);font-size:14px}.badge{background:var(--accent);color:#fff;border-radius:99px;padding:0 6px;font-size:12px;font-weight:700;min-width:20px;height:20px;line-height:20px;text-align:center;flex:none}.menu{position:absolute;top:52px;left:8px;z-index:30;background:#fff;color:var(--text);border-radius:8px;box-shadow:0 4px 20px #0003;min-width:220px;padding:6px 0}.menu-who{padding:8px 14px;border-bottom:1px solid var(--line)}.user-menu{position:relative}.menu-item{display:block;width:100%;text-align:left;background:none;border:0;padding:9px 14px;cursor:pointer}.menu-item:hover{background:var(--bg)}.chat-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;background:var(--bg)}.chat-empty .big{font-size:64px}.chat-empty p{max-width:380px}.chat{flex:1;display:flex;flex-direction:column;min-height:0;position:relative;background:var(--chat-bg)}.chat-head{display:flex;align-items:center;gap:12px;padding:8px 14px;background:var(--head);border-bottom:1px solid var(--line);min-height:56px}.chat-head .title{font-weight:600;font-size:15px;margin:0}.chat-head .sub{font-size:12px;color:var(--muted)}.back{display:none;text-decoration:none;font-size:22px;color:var(--muted);padding:4px 8px}.msgs-wrap{flex:1;min-height:0;position:relative;display:flex;flex-direction:column}.msgs{flex:1;overflow-y:auto;padding:12px 6% 8px;display:flex;flex-direction:column;gap:3px;overscroll-behavior:contain}.older,.empty-hint{text-align:center;font-size:12px;padding:6px;align-self:center;background:#fffc;border-radius:8px;margin:6px auto}.day{text-align:center;margin:10px 0 6px}.day span{background:#fff;color:var(--muted);font-size:12px;padding:4px 12px;border-radius:8px;box-shadow:0 1px 1px #0b141a1a}.msg{display:flex;flex-direction:column;max-width:100%}.msg.mine{align-items:flex-end}.msg.theirs{align-items:flex-start}.bubble{max-width:min(560px,85%);padding:6px 9px 4px;border-radius:8px;background:var(--theirs);box-shadow:0 1px 1px #0b141a21;position:relative;word-break:break-word}.mine .bubble{background:var(--mine)}.bubble.failed{background:#fde8e6}.bubble .text{white-space:pre-wrap;overflow-wrap:anywhere}.bubble .text a{color:#027eb5;word-break:break-all}.meta{float:right;margin:6px 0 0 10px;font-size:11px;color:var(--muted);display:inline-flex;gap:4px;align-items:center}.ticks{letter-spacing:-3px;font-size:13px}.ticks.read{color:var(--tick);letter-spacing:-4px}.ticks.sending{letter-spacing:0;font-size:10px}.fail-row{font-size:12px;color:var(--err);display:flex;gap:10px;margin:2px 4px;flex-wrap:wrap}.new-pill{position:absolute;right:18px;bottom:12px;background:var(--primary);color:#fff;border:0;border-radius:99px;padding:8px 14px;cursor:pointer;box-shadow:0 2px 8px #00000040}.blocked-bar{padding:14px;background:var(--head);display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap}.composer-wrap{background:var(--head)}.composer{display:flex;align-items:flex-end;gap:8px;padding:8px 12px calc(8px + env(safe-area-inset-bottom))}.composer textarea{resize:none;border-radius:22px;padding:10px 16px;max-height:140px;line-height:1.35;flex:1;border-color:transparent}.send-btn{width:42px;height:42px;border-radius:50%;border:0;background:var(--primary);color:#fff;cursor:pointer;font-size:17px;flex:none}.send-btn:disabled{background:#b5c6c1;cursor:default}.file-errors{margin:0;border-radius:0}.staged{padding:12px;border-bottom:1px solid var(--line);background:#e9edef;display:flex;flex-direction:column;gap:8px}.staged-body{display:flex;justify-content:center;max-height:260px;overflow:hidden}.staged-body img{max-height:260px;max-width:100%;border-radius:8px;object-fit:contain}.drop-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#008069e0;color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;z-index:20;pointer-events:none;border:3px dashed #fff}.att-img{display:block;border:0;padding:0;background:none;cursor:zoom-in;margin-bottom:4px}.att-img img,.att-thumb-local{display:block;max-width:320px;width:100%;max-height:320px;border-radius:6px;object-fit:cover;background:#dfe5e7}.att-missing{padding:24px;color:var(--muted);font-size:13px}.att-pdf{display:flex;gap:10px;align-items:center;padding:8px;background:#0000000d;border-radius:6px;min-width:220px;margin-bottom:4px}.att-icon{font-size:30px}.att-info{min-width:0}.att-name{font-weight:600;max-width:240px}.att-actions{margin-top:4px}.progress{height:5px;background:#0000001f;border-radius:3px;overflow:hidden;margin:6px 0 2px}.progress .bar{height:100%;background:var(--primary);transition:width .15s}.upload{min-width:200px}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000e6;z-index:100;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:56px 12px 12px}.lightbox-bar{position:absolute;top:0;left:0;right:0;display:flex;gap:8px;align-items:center;padding:10px 14px;color:#fff}.lightbox-img{max-width:100%;max-height:100%;object-fit:contain}.lightbox-err{position:absolute;top:56px}.explore{flex:1;display:flex;flex-direction:column;background:var(--panel);min-height:0;overflow:hidden}.explore-scroll{flex:1;min-height:0;overflow-y:auto}.explore-body{padding:14px 16px;display:flex;flex-direction:column;gap:12px;max-width:760px;width:100%;margin:0 auto}.code-form input{flex:1}.chips{display:flex;gap:6px;flex-wrap:wrap}.chip{border:1px solid var(--line);background:#fff;border-radius:99px;padding:4px 12px;cursor:pointer}.chip.on{background:#d9fdd3;border-color:var(--primary);color:var(--primary-dark)}.company-list{list-style:none;margin:0;padding:0}.company-item{display:flex;gap:12px;align-items:center;width:100%;text-align:left;background:none;border:0;border-bottom:1px solid var(--line);padding:10px 4px;cursor:pointer}.company-item:hover{background:#f5f6f6}.company{padding:20px 16px;max-width:640px;margin:0 auto;width:100%}.company-head{display:flex;gap:16px;align-items:center;margin:16px 0}.sentinel{text-align:center;padding:8px}.toast{position:fixed;bottom:18px;left:50%;transform:translate(-50%);background:#111b21;color:#fff;padding:10px 16px;border-radius:8px;display:flex;gap:12px;align-items:center;z-index:60;max-width:92vw;box-shadow:0 4px 16px #0000004d}.toast.warn{background:#664d03}.toast.error{background:#8a1f12}.toast .link{color:#fff}@media (max-width: 800px){.list-pane{width:100%;border-right:0}.app[data-pane=list] .detail-pane,.app[data-pane=detail] .list-pane{display:none}.back{display:inline-block}.msgs{padding:10px 10px 6px}.bubble{max-width:88%}.login-wrap{align-items:flex-start;padding-top:40px}}